Art of coating materials



Nmvo 16 1926. 1,607,056

J. W. COSGROVE ART OF COATING MATERIALS ld Oct. 5, 1922 2 Sheets-Sheet 1 av. 1 1926. 1,607,056 J. W. COSGROVE ART OF COATING MATERIALS led Oct. 5, 1922 2 Sheets-Sheet 2 Patentecl Nov. 16, 19 26.

UNITED STATES I 1,607,056 PATENT OFFICE.

JOHN W. COSGROVE, F MEDFORD, MASSACHUSETTS, ASSIGNOR'TO UNITED SHOE MACHINERY CORPORATION, OF IPATIEIRSON', NEW JERSEY, A CORPORATION 01 NEW JERSEY.

ART OF COATING MATERIALS.

Application filed October 3, 1922'. Serial No. 592,152.

This invention relates to the application of coatings, as of cement or other adhesive. It is herein disclosed in connection with a machine for cementing shoe-uppers, in which 5 it is of special utility.

In the manufacture of some types of shoes, as tennis shoes, it is customary, after the vamp-sections have been stitched together, to cement their lower edges which ,may eX- tend substantially around the shoe at the side which is to overlie the insole, upon such a machine as'is disclosed in the patent in my name numbered 1,380,360 and dated June 7. 1921. After this coating has become sufficiently dry to allow the work to be handled, the lining is stitched to the vamp, near the top edge, and the corresponding lower edge of the lining is coated to obtain perfect retention of both portions of the upper in-lasting. The maintainance of the correct relation between the vamp and lining during the lasting operation presents a problem of some difliculty. especially if the linin g material is thin and sleazy. Some manufacturers follow the practice of applying a daub of cement by hand to the face of the lining next the ,vamp at the rear portion, while others, relatively few in number. handcement about. the entire edge of the lining. Either procedure is troublesome, adding to the cost of production, that last mentioned quite materially. It is an object of this invention to effect such coating operations upon one of a plurality of partly'attached layers of material without increase in the time taken by the operator, and this is accomplished by the application of the adhesive to one layer at a point between the layers of material simultaneously with the coating of the opposite side of said layer' at a point substantially opposite thereto.

There are involved a novel method and machine for attaining this end.

Another object of the invention is to provide for the application of the coating over different widths of the edges of material.

In the cementing of shoe-uppers, for example, the practice heretofore, as far as I- r am aware, has been either to change the applying and work-supporting or other engaging rolls for those which are wider; or narrower, according to the width of the area to be coated, or to adjust a work-gage across the peripheries of the rolls, so that a greater or less transverse extent thereof From this may result lmproper advance of is effective. The first is open to objections because of the necessity for the carrying of additional parts by the manufacturer and the loss of time by the operator in changing from one to another. The second tends to defective coating, since the cement accumulates upon the unused surfaces of the rolls and upon the gage, and from these runs upon the edge of the work, there gathering in an uneven ridge. The above-described adjustment of the gage, when there is employed the work-supporting roll of the previously-mentioned patent, which roll has an inner, rigid section and an outer, yieldable section, introduces an additional difficulty. The movement of the gage takes place first across the rigid portion of theroll, reducing the width of this which contacts with the work, and perhaps cutting it ofi entirely. "w

the work by the rolls, because the pressure of the yieldable section may not give sufficient feeding action. The present invention overcomesthese objections by removing the work-supporting or pressure-roll, and the gage from the unused portion of the apply ing roll, and maintaining always active the full rigid feeding surface of the former roll.

These and other objects of the invention are hereinafter described in detail, reference being had to the .accompanyingdr'awings, in which Fig. 1 illustrates, in front elevation, a particular embodiment of my improved coating machine; 0

Fig. 2 is a side elevation thereof, looking from the left in Fig. 1;

Fig. 3 is a top planview with the applying roll removed;

Fig. 4 is a similar perspective view; and

Fig. .5 is a fragmentary view infront elevation showing the layers of work in applying position.

At10 is illustrated a portion of the frame of such a machine as that disclosed in Patent No. 1,380,360, together with the upper applying roll 12, receiving cement froman elevated receptacle, the lower portion of which appears at 13 in Fig. 1, and the lower work-supporting roll 14, having a rigid inner section 16 and an outer, yieldable section 18. As in the atent, this roll 14 is'carried by a shaft 20 1ournaled in an oscillatory pressure-arm 22, both rolls being rotated in the direction of the arrows in .Fig. to feed the work between them. The

peripheries of the rolls are preferably of substantially the'same trans-verse width, so

that the work supported upon the lower.

roll may receive, under uniform pressure, the application of cement by the full width of the upper roll. The outer extremity of the shaft 20 is threaded at 24, the roll 14 fitting over this and being held adjustably longitudinally of the shaft between inner and outer abutments, furnished respectively by nuts 26 and 28 engaging the thread 24.

The length of this thread is such that the position of the roll 14 may be varied from one in which the full width of the applying roll is made effective by being opposite the supporting roll, to one in which the last-mentioned roll is carried so far to the left, as viewed in Fig. '1 of the drawings, that thetransverse width of the supporting roll overlapping the applying roll is equal to the minimum width of the area to be 7 coated.

Associatedwith the rolls is a gage member 30 having a shank 32 extending across the front of the machine, and by which it is secured to the arm 22, there being .carried upon the outer extremity of this shank the gage-portion having a surface 34 arranged for contact with the inner :edge of the material to be coated, as this rests upon the supporting roll 14. -The shank 32 is slotted longitudinally at" 36, and through this slot and being threaded into the frame is a set-screw 38, by which the gage may be set to position its contact-surface 34 in different planes and to thus establish the desired relation with the roll 14. Extending forwardly from the gage-surface 34 is a curved guard-finger 40 passing above and partially about the shaft 20 or the abutment-nut' 26 thereon. This portion 40 of the guard prevents threads and shreds from the fabric being operated upon from windlng about the shaft, these, especially when mixed with the cement, clogging the machine and being difiicult to remove.

Splined at 42 upon the shaft 20 to rotate therewith and still move longitudinally is a -sleeve 44, having at its inner extremity an annular flange 46 andat its outer end a worm-wheel 48 fast on the sleeve. rier-frame 50 has a body-portion 52 sur- Ir rounding and arranged to swing about the the carrier frame 50 is'a vertical shaft 60 upon'a horizontal shaft 68. rotatable in the the end of the spring opposite the lug bearhaving fast upon its upper extremity a disk 62, the opposite sides of which preferably taper from a central body of maximum thickness to a reduced edge. The upper The diameter of this auxiliary applying member or disk 62 and the location of its shaft upon the carrier are suchftha-t its rearedge approaches in such proximity to the inner edge of the primary applying-roll 12 at its lower ortion that it receives cement therefrom. ecured u on the shaft760is" a worm-wheel 64 meshing with aw rIn 66 carrier at the inner sideof the shaft 60. The shaft68 'alsocarries a worm 7 O engaging the worm-wheel'48 upon the sleeve 44, so that the disk has constantly transmitted to it the rotary effect of the shaft 20, the

direction of its movement being as indicated by the arrow in Fig. 2. The gear which .thus drives the disk 62 may beguarded b. an overhanging flange 71 rising from t ecarrier. The disk is normally held in co-operation with the applying roll, as the carrier pivots upon the sleeve 44, by

a spring 7 2 surrounding a screw 74 threaded.

through a lug 76 rising from the arm 22,

ing against an arm 78 projecting upwardly and inwardly from the carrier-body 52. The extent of approach of the disk to the applying roll, under the influence of the spring 72', is determined by a stop-screw 80 operating through a lug 82 upon the arm 22 and contacting with the arm 78. The normal relation of the disk to the applying roll, independently of its yield may be determined by the adjustment of the. carrier-portion 54 upon the lower portion 52 under the control of the screws 58. In addition to this adjustment, the relation of the applying disk to the rolls 12 and 14 transversely of the work-engaging faces may be changed by movenent of the carrier 50 with the sleeve 44 along the shaft 20.

This travel may be effected through a handle 84 dependin from the carrier in a position convenient or manipulation by the operator.

In using my improved machine for cementing linings attached to Vamps as by stitching together their uppermost edges, the operator adjusts the position of the work supporting roll 14 upon the threaded end of the shaft 20 by turning the abutment-nuts,

in one direction or the other until there is a width of this roll opposite the applying roll equal to the corresponding dimension of the part of the lining upon which it is desired to apply cement. The gagesurface 34 is similarly adjusted bymeans of the screw 38 until it is in close proximity to the inner side ofthe supporting roll- 130 With the work-engaging rolls thus-related,

it will be seen that the full feeding effect of the rigid section 62 is obtained, while the portion ofv the cement-applying surface of the roll 12 which is to be inactive is re movedfrom both the supporting roll and gage, so that it will have little tendency to deliver an excess of cement to accumulate upon the edge of the lining and thus destroy the uniformity of the coating." To enable the operator. readily to i introduce the assembled vamp and lining between the rolls with the latter uppermost, the" upper will preferably be turned inside "out, after which he separates these elements of the up- I per, so that the outer edge of thedisk 62 passes between them. Both 'layer'sare then inserted between the applying roll 12 and the supporting roll 14. This disk 62, pressed yieldingly toward the applying roll by the spring 7 2 and previouslyadjusted by the screws 58 so that it will properly cooperate therewith, receives a coating of cement from the inner and often unused'p'or tion of the roll, carrying it to and distrib uting it over the inner face of the lining,

or'that opposite the surface simultaneously acted upon and coated by the roll 12. Since 'the outer edge of the disk which contacts .one of the side seams of the upper, and" withthe lining is traveling in the opposite direction to that in which the work is fed by the rolls, it acts to -maintain this under tension and spread out so that it will not become. doubled over or displaced. The application of. the coating is best started at progresses, without change in the relation of the elements, until the opposite side seam is reached. Then the operator, without disturbing the engagement of the work by the rolls 12 and 14, may draw the carrier 50 away from the supporting roll'by manipulation of the handle 84, thus removing the edge of the disk 62 from its position between the lining and vamp. With the workthus freed, its feed by the rolls may continue until the seam is passed, when the disk may be carried back between the lining' and vamp, and the coating carried to completion at the side seam at which it was started.

Having described my invention, what I, claim as new and desire to secure by Letters Patent of the United States is:

1. The method of coating material partially secured together in successive layers, which consists in applying simultaneously and at substantially opposite points a coating to one face of a layer of the material between the layers and to the opposite face of the same layer.

' 2. The method of preparing lined Vamps for shoes, which consists in stitching together the upper edges of the vamp and the lining and in simultaneously applying. cement to the inner face of the lining next to the vamparrd was opposite face of said lining at its free" edge.

"3. Ina coating machine, an applying member, a pressure member, and a second applying member extending between the pres-,'

sure memberand the first-named applying member. g

"4. In a coating machine, an applying member, a pressure member, and a second applying member extending between the ressure niember'and the first-named apply-' rangedto apply a coating substance to the workfand means for yieldably forcing the auxiliarymember into co-operation with the primary member.

7.. In a'coating machine, a primary applying member, an auxiliary applying member,

said members beingrelatively movable into and out of co-operation, and; means for yieldably forcing the'auxiliary member into co-operation with the primary member to receive a coating substance therefrom.

8. In a coating machine, an applying member, a pressure member, a second applying member extending between the pressure member and thefirst-named applying memher, and means for yieldably forcing said second applying member into co-operation with the associated applying member.

9. In a'machinefor coating material assembled and partially secured in successive layers by attaching means spaced from the edges thereof, a member arranged tocoat I the outer face of a layer .of the material,and a coating member arranged to enter between the free edges of the. layers.

10. In a coating machine, ah applying roll,

and an applying disk co-operating with the applying surface of the roll, both said roll and said "disk being ment to the work. I

11. In a coating machine, an applying roll, a pressure-roll co-operating therewith, and an applying disk having itsedge extending between the peripheries of'the rolls.

12. In a coating machine, co-operating applying and pressure-rolls rotatable about substantially horizontal axes, and an applying disk rotatable about a substantially vertical axis and co-operating with the rolls.

13. In a coating machine, an applying roll, a pressure-roll co-operating therewith,

arranged to apply ceroll is mounted, a carrier mounted to movesaid rolls being rotatable to feed the work between them, and a rotatable applying disk having its edge extending between the peripheries of the rolls and traveling in the. opposite direction thereto.

14. In a. coating machine, co-operating rotatable applying and pressure-rolls, and

a rotatable applying disk arranged to contact near its periphery with one 'side of the periphery of the applying roll.

15. In a coating machine, a primary-applying member, a carrier movable in differ- 'ent'angular directions with respect to the applying member, and an auxiliary applying member mounted upon the carrier.

16. In a coating machine, a rotatable applying roll, a carrier movable transversely of the roll and toward and from the roll, and

carrier.

17. In a coating machine, a primary applying member, a carrier movable indifferent angular directions with respect to the applying member, an auxiliary applying member mounted upon the carrler, and a spring acting upon the carrier to move the disk into contact with the applying member.

18. In a coatingmachine, a rotatable applying roll, a rotatable work-supporting roll, a shaft upon which the" supporting roll is mounted, a carrier mounted to move longitudinally and circumferentially of the shaft, and an applying disk rotatable upon the carrier. 1 i

19. In a coating machine, a rotatable applying roll, a rotatable work-supporting roll, ashaft upon whichthe supporting longitudinally and circumferentially of the shaft, a spring for imparting the circumferential movement to the shaft, and an applying disk rotatable upon the carrier.

20. In a machine for cementing linings attached to Vamps, opposite rolls for engagement with the vamp and with the face of the lining removed from said vamp, and a rotatable disk arranged to enter between the lining and vamp.- i v f 21. In a machine. for cementing linings attached to Vamps, a rotatable applying roll and a rotatable pressure-roll for engagementwith the outer faces of the lining and vamp, and a rotatable disk arranged to receive cement from the applying roll and to enter between the-lining and vamp. 22. In a machine for cementing linings attached to Vamps, a rotatable applying 'roll and arotatable pressure-roll for engage- 1 ment with theouter faces ,of the lining and vamp, ,a rotatable disk arranged to receive cement-from the applying roll and to enter between the lining and vamp, and a spring pressing'the disk into co-operation with the applying roll.

23. In a coating machine, upper and lower an applying disk rotatable upon the plying roll, an opposite rotatable workengaging roll arranged to overlap the applying roll for a considerable portion of its length, and means arranged to vary the position of said engaging roll transversely of the applying roll and thereby the extent of the overlap.

25. In a coating machine, a rotatable ap plying roll, an opposite rotatable roll hav- .lng arigid work-engaging portion and a yieldablework-engaging portion, and means I arranged to vary the effective width of the yieldable work-engaging portion opposite the applying roll.

26. In a coating machine, a rotatable'applying roll, an opposite rotatable roll having a-rigid work-engaging portion and a yieldable work-engaging portion, and means arranged to vary the extent which the yieldable work-engaging portion overlaps the applying roll transversely of itsperiphery, while maintaining effective the entire width of therigid portion. I

27. In a coating machine, a rotatable ap plying roll, a shaft extending substantially parallel to the axis of the applying roll. a pressure-roll mounted upon the shaft, and securing means carried by the shaft and arranged to fix the pressure-roll in different positions longitudinally thereof.

28. In a coating machine, upper and lower rotatable rolls for co-operation with the work at their peripheries, means for supplying a. coating substance to the upper roll, means arranged to vary the extent which the lower roll overlaps the upper transversely of their peripheries, ,and. a workgage adjustably arranged at one extremity ofthe lower roll.

29. In a coating machine, rotatable rolls for cooperation with the work at their peripheries, means for supplying a coating substance to one of the rolls, means arranged to vary the extent which the rolls overlap each other transversely of their peripheries, and an auxiliary applying member variable in position transversely of the rolls.

' 30. In a coating machine, a rotatable upper applying roll, means for supplying a coating substance thereto, a rotatable lower work-supporting'roll, a shaft upon which the lower roll is mounted, and a work-gage situated adjacent to the supporting roll and having a ;guard-finger extending over the shaft of said roll.

In testimony whereof I have signed my name to thisspecification. 

